Color-picture analyzing apparatus for continuously switching-on

Details Color-picture analyzing apparatus for continuously switching-on Color-picture analyzing apparatus for continuously switching-on

1985-01-04

1987-04-14

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 41, 358 80, H04N 146

Patent

active

046582894

ABSTRACT:
A color-picture analyzing apparatus includes a blue, green, and red-purpose lamps, preferably, fluorescent lamps; a sharp-cut filter in front of the red-purpose lamp for solely passing the red radiation; an infrared-cut filter interposed between a document having a color-picture to be analyzed and a reading sensor for cutting an infrared zone radiation; a first circuit for continuously switching on the green lamps; and a second circuit for alternatively switching on the blue and the red-purpose lamps. The red-purpose lamp can provide wide radiations covering the red spectral zone. It may be a cool white fluorescent lamp having a short afterglow time.

REFERENCES:
patent: 4318122 (1982-03-01), White

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